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题库 / Prep2012-CR-17
A physically active lifestyle has been shown to help increase longevity. In the Wistar region of Bellaria, the average age at death is considerably higher than in any other part of the country. Wistar is the only mountainous part of Bellaria. A mountainous terrain makes even such basic activities as walking relatively strenuous; it essentially imposes a physically active lifestyle on people. Clearly, this circumstance explains the long lives of people in Wistar.
Which of the following, if true, most seriously weakens the argument?
In Bellaria all medical expenses are paid by the government, so that personal income does not affect the quality of health care a person receives.
People living in Wistar do not have a significantly better diet than people living in other parts of Bellaria.
Many people who live in the Wistar region have moved there in middle age or upon retirement.
The many opportunities for hiking, skiing, and other outdoor activities that Wistar's mountains offer make it a favorite destination for vacationing Bellarians.
Per capita spending on recreational activities is no higher in Wistar than it is in other regions of Bellaria.
错选A，没有认真审题目里写的是哪个地区。
C: 说明本身这里的人平均年纪就高
其他原因来weak这个conclusion，中年以后才搬来，说明已经活过了中年岁数了。提高了整体死亡率岁数
Wistar平均的死亡年龄比其他地方都要高，这是因为这片地形有山因此对体力有很高的要求。相关推因果，问weaken
choice b, Wistar地区的人的饮食并不会比其他地区的人的饮食好很多。 strengthen the conclusion，排除他因
choice c, 许多搬家到了Wistrd的人都是中年或者退休了以后才搬家过来的。correct，他因说明平均死亡年龄相对高的原因，是因为人群分布的关系
A说的是整体，C说的是地区，要注意区分不同范围的地区名。
A中的Bellaria改为Wistar就可以作为正确答案了。
这题妙啊！C
P:W的山地使得walk很艰难，自然导致积极的生活方式
C:W地区的人更长寿
题目说the average age at death，C选项他因削弱，由于W地区几乎是中老年人，死亡年龄肯定更大。
这个题出的很棒啊！！虽然最开始没有反应过来C为什么对 但是选对了...
注意：题目中说的是 the average age at death，平均死亡年龄，如果W这个地方有很大比例的人都是在中老年的时候才搬来的，自然就将平均死亡年龄拉高了（去平均了那一部分早死的人）
果因 C选项CQ1他因
A.选项说的是B地区的整体情况，故可以直接排除
C: This is an alternate cause for the longetivity. What if people who move to wistar are already old. so it may be that not the physical activities but the immigration to wistar is the reason for higer age of death. Hence it weakens the argument.
CQ4 他因：这些人是外来的，暗含不一定经常walking的意思
相关因果
前提：walking和寿命之间存在正相关关系
结论：this circumstance explains the long lives of people in Wistar
CQ4 他因：这些人是外来的，暗含不一定经常walking的意思
看清楚题目描述的到底是谁
C: This is an alternate cause for the longetivity. What if people who move to wistar are already old. so it may be that not the physical activities but the immigration to wistar is the reason for higer age of death. Hence it weakens the argument.
mark
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A: Argument does not explain anything about health care quality or medical expense for the longevity. Also A does not discuss the age factor. Hence it is irrelevant.
point A is talking about entire region of Bellaria and not Wilstar alone. This rules out this option.
we're talking about average age at death. if everyone who moves to wistar is old, then, at death, they will be exceptionally old, because nobody will die at a non-advanced age.
exercise +; 寿命+；得出exersice 导致长寿，相关因果，C，相关性不存在
相关因果。
相关因果，山地导致长寿